Technical Paper
Hardware in the Loop for a Dynamic Driving System Controller Testing and Validation
2005-04-11
2005-01-1667
Active Chassis Control Engineering with help from ITN/PD at DaimlerChrysler, has been developing a hardware-in-the-loop (HIL) system, for the evaluation and optimization of interaction among the various chassis control systems, and between the chassis control system and the vehicle. This HIL system consists of a transfer case, a hydraulic load box, two differential load boxes, an electronic control unit (ECU), a virtual 14-DOF (Degree of Freedom) vehicle model, and a computer system with a high-speed operating platform. The HIL system simultaneously demonstrates the advantages of both hardware testing and computer modeling. Different from conventional bench tester, the system offers the capability to implement dynamic ECU tests with feedback requirements for the sophisticated control algorithms, CAN diagnostics, fault injection, automatic-operating scenarios duplication and validation.
